Inkstand.



I "No. 786,959.,

' PATBNTED APR. 11,1905.

INKSTAND. 'APP LIOATIOI FILED KAI. 21, 1903.-

, w //////////An Zl/lll/l!vllllfllllllllllllllll" UNITED STATES PatentedApril ii, 1905.

PATENT OFFICE.

EMRY DAVIS, or NEW YORK, NY.

INKSTANDI SPECIFICATION forming part of Letters Patent No. 786,959,dated April 11, 1905.

' Application filed March 21, 1903. Serial No. 148,811.

T0 at whom it may concern.-

Be it known that. I, EMRY DAvIs, residing at New York, in the county ofNew York and State of New York, have invented certain new and usefulImprovements in lnkstands, of

which the following is a full, clear, and exact description, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to inkstands, and is in the nature of animprovement on the inkstands shown in the patents granted to me, Nos.399,844, 413,390, and 491,640, wherein the ink is supplied to the pen bybeing forced fromthe reservoir upon the depression of afloat or plunger.Its object is to provide a simple and efficient means for regulating thequantity of ink supplied upon the depression of the displacing float orplunger.

The invention consists in the features of construction, combinations ofelements, and arrangement of parts, which will be hereinafter fully setforth, and the novel features thereof pointed out in the claims.

In the accompanying drawings, which illustrate two embodiments of myinvention, Figure 1 is a sectional view of one form of stand. Fig. 2is asectional detaiLon an enlarged scale, of one of the parts thereof. Fig.3 is a sectional View of a second form. Fig. 4 is a side elevation ofone of the parts shown in parts throughout the several views.

Referring first to Figs. 1 and 2, the body of the stand may be of anydesired material and form, preferably a glass reservoir A, open at itsupper end. Within this reservoir is placed a sleeve 1, which issupported at its upper end within the mouth of the reservoir by a collar2, preferably of hard rubber. Between this collar and the reservoir maybe placed a packing-ring or gasket 3, preferably of soft rubber, wherebythe mouth of thereservoir is closed practically air-tight save for theopening through sleeve 1, which sleeve extends, as shown, down into thereservoir so that its open lower end is adjacent the bottom thereof.

close or sliding fit therein is the float or Within the tube 1 andhaving a.

drical shell having an external diameter approximating the innerdiameter of the tube 1 and the inner supply-tube 5, which is of adiameter less than the diameter of the shell, thereby leaving anair-chamber within the plunger surrounding the tube. This airchambercommunicates with the reservoir or with the 'space within the sleeve 1,through openings 6 in the lower end of the plunger. The end of thesupply-tube 5 opens out into a dipping-cup 7, and the upper end of thesleeve is provided with an overflow-chamber 8. These parts are insubstantial accordance with the principles and with certain of thespecific features of construction of the inkstands described in thepatents above noted. The lower end of the supply-tube 5 is contracted indiameter because of the presence of an in wardly-projecting annularflange 9. Telescoping loosely within the supply-tube is the uprightmember 10 of a tubular adjustment device in the shape of an inverted T.This upright member extends to any desired distance within thesupply-tube, and at its upper .end is provided with an annularprojecting flange or shoulder 11, which is adapted to contact with theflange 9 and prevent" the adjustnent device dropping outthrough thelower end of the supply-tube. The upper member 10 is screwed into thelower cross member 12, the length of which is such that its ends openout beyond'the opening of the sleeve 1.

The general operation of this stand is the same as that of the patentsalready noted. Upon depressing the plunger 4 the ink is forced from theouter reservoir through the crossarm 12 of the T, up through the upright"member 10, and through the supply-tube 5 into the dipping-cup, where itmeets and inks the pen. When the pressure of the air within thereservoir becomes weakened, so that the depression of the plunger doesnot bring a suflicient quantity of ink to the pen-level, theair-pressure, or, as it may be said, the inkstand itself, may beadjusted by simply raising the float or plunger. Thereupon the ink inthe reservoir will follow up the plunger within the sleeve 1, and thepressure of the air within the reservoir will become so weak that airfrom the plunger 4, which comprises an outer cylinoutside will rush inthrough the supply-tube and the adjustment device until the equilibriumis restored. The extent to which this is carried will depend upon theheight to which the plunger is raised.

Special advantages of this construction reside in the fact that-the airentering to restore the equilibrium of the stand is carried out throughthe cross member 12 of the adjustment device to a point or points beyondthe opening of the sleeve, so that it is not possible for it to collectwithin the sleeve, but is led to its proper place in the reservoir. Thepresence of the flanges on the tube 10 and within the tube 5, which areadapted to contact with each other under certain relative positions ofthe telescopic tube and the plunger, prevents the dropping out of thetelescopic tube when the plunger and sleeve are raised and preserves theconnection between the two, thereby obviating the disadvantage of havingto fish the telescopic tube out of the reservoir or to readjust thetelescopic tube and plunger. There is also an advantage in this that therelative movement of the telescopic tube and plunger is positivelylimited at one extreme by the contacting of the flanges 9 and 11 and atthe other extreme by the contacting of the lower end of the plunger withthe cross member 12. While there should be a comparatively close orsliding fit between the upper end of the tube 10 and the inner walls ofthe supply-tube 5 in order that communication between the outeratmosphere or the dipping-cup and the reservoir may be through thedescribed channels, the fact that the T-tube is loose at its lower end,so that it may have unrestrained movement with relation to thereservoir, prevents any binding or friction between the parts, as theT-tube is free to accommodate itself to the movements of the plunger orto any slight warping thereof which may be occasioned by use. It will befound that the lower cross member of the T will in use assume variouspositions parallel to different diametrical lines of the plunger orsleeve, this changing of position being occasioned by the tendency ofthe T-tube to accommodate itself to the movements of the plunger. Inassembling, the upright member 10 of the T-tube is inserted within thesupply-tube 5 from the upper end and the cross member thereof screwedonto the threaded lower end of the upright member.

If it is desired to clean either the reservoir or any parts of thestand, the sleeve with the plunger and adjustment device may be removedtogether, whereupon the reservoir may be cleaned as readily as any openink-well and the other parts cleaned or manipulated as desired. It willbe obvious that the tube 12 could open at one end only and that variousother means may be employed of leading the air from tube 10 beyond theopening of sleeve 1 or of preventing its passing back up into thesleeve.

The general construction shown in Fig. 3 is the same as that of Fig. 1.In this instance, however, the mouth of the reservoir B is morecontracted. The collar and gasket are omitted and the joint between thereservoir and the sleeve 1 is a direct one. Such changes, however, aswell as manyothers which might be made in the'details of theconstruction of this inkstand, are well within the knowledge of themechanic skilled in this art or are such as will be readily suggested bythe constructions illustrated. The material feature of modification ofthe construction of Fig. 3 is that the upright member 10 of theadjustment device is of the same diameter throughout, so that ittelescopes freely within the supply-tube 5 and may be disengagedtherefrom without the necessity of removing the lower crosstube 12. Thisobviates the necessity for the threaded connection between the uprightcross member of the T, and they may be made integral or may be fastenedtogether in any economical manner.

Fig. 1 shows the inkstand in its normal condition ready for use, whileFig. 3 shows the stand with the plunger depressed by means of a pen C,thereby bringing the ink up to the pen-level and inking the pen.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. In an inkstand, in combination with a reservoir, an inner sleeve, anda plunger working in said sleeve having an ink-supply passage therethrough, and a tube in telescopic relation with the ink-passage in saidplunger adapted both for telescopicv movement in relation to saidplunger and for movement of rotation with reference thereto.

2. In an inkstand, in combination with an outer reservoir and an innersleeve, a plunger working in said sleeve and adapted to force ink fromthe reservoir, and an auxiliary tube in telescopic relation with saidplunger, said tube communicating both with the interior of the reservoirand with the outer air and being free for movement with relation both tothe plunger and the reservoir.

3. In an inkstand, in combination with an outer reservoir and an innersleeve, a plunger working in said sleeve and having a passage thereinthrough which ink passes from the reservoir, and an auxiliary tube intelescopic relation with said plunger, said tube being adapted tocommunicate both with the inksupply passage through the plunger and withthe reservoir and being free for movement with relation both to theplunger and the reservoir.

4. In an inkstand, in combination with an outer reservoir and an innerguiding-sleeve, a plunger working in said sleeve and having lIO -plunger working in said sleeve and having an ink-supplypassagetherethrough, an auxiliary adjustment device substantiallyT-shaped in form and having the upright member thereof in telescopicrelation with the ink-supply passage in the plunger and the cross memberthereof below said plunger and sleeve and free to assume a positionparallel to any diametrical line of said plunger or sleeve.

6. In an inkstand, in combination with an outer reservoir, an innerguiding-sleeve, a plunger working in said sleeve and having an ink-suppl y passage therethrough, an auxiliary adjustment device substantiallyT-shaped'in form and tubular and having the upright member thereof intelescopic relation with the ink-supply passage in the plunger and thecross member thereof below said plunger and sleeve and free to assume aposition parallel to any diametrical line of said plunger or sleeve.

7. In an inkstand, in combination with a reservoir, an inner sleeve, anda plunger working in said sleeve having an ink-supply passagetherethrough, a tube in telescopic relation with the ink-passage in saidplunger, and means for limiting the relative movement of said telescopictube and plunger.

8. In an inkstand, in combination with a reservoir and an inner sleeve,a plunger working in said sleeve and having an ink-supply passagetherethrough, through which ink may pass from the reservoir, a tube intelescopic relation with said passage in the plunger, a

flange at the upper end of said tube of a diam-' eter suflicient toprevent the removal of the tube through the lower end of the supply-passage, said passage being contracted at that point, and a cross-tubeconnected to'the lower end of said telescopic tube and opening at apoint or points beyond the sleeve.

9. In an inkstand, in combination with a reservoir and an inner sleeve,a plunger working in said sleeve and having-an ink-supply passagetherethrough, through which ink may pass from the reservoir, a tube intelescopic relation with said passage in the plunger, a fiange at theupper end of said tube of a diameter suificient to prevent the removalof the tube through the lower end of the supplypassage, said passagebeing contracted at that point, and a cross-tube detachably connected tothe lower end of said tube and opening at a point or points beyond thesleeve.

10. In an inkstand, in combination with a.

reservoir, an inner sleeve, and a plunger working in said sleeve andadapted to force ink from the reservoir, an adjustment devicecooperating with said plunger, said adjustment device being adapted tocommunicate both with the interior of the reservoir and with the outerair, and means whereby said adjustment device may be limited in movementin a direction longitudinal of said plunger but may be free formovementof rotation relative to said plunger.

11. In an inkstand, in combination with a reservoir, an inner sleeveextending into said reservoir,and a plunger working in said sleeve, atubular adjustment device adapted to cooperate with said plunger andconstituting a passage for air from the exterior to the interior of thereservoir, said adjustment device being free for movement with relationto said reservoir, but constrained in its movement with relation to saidplunger.

12. In an inkstand, in combination with a reservoir, an inner sleeve,and a plunger working in said sleeve having an ink-supply passagether'ethrough, a removable tube in telescopic relation with theink-passage in said plunger.

13. In an inkstand, in combination, a reservoir provided with anopening, a sleeve fitted to said opening and projecting downwardly intosaid reservoir, and separate removable and movable means adapted toconduct air downwardly withinsaid sleeve and discharge the same intosaid reservoir at a point outside the inner surface of said sleeve.

14:. In an inkstand, in combination, a reservoir provided with anopening, a sleeve fitted to said opening and projecting downwardly intosaid reservoir, and removable-means independent of said sleeve adaptedto conduct air downwardly within the same and discharge said air intosaid reservoir at a point outside the inner surface of said sleeve.

:15. In an inkstand, in combination, a reservoir providedfwith anopening, a sleeve fitted to said opening and projecting downwardly intosaid reservoir, a float and a tubular member adapted to reciprocatewithin the same and conduct air into said reservoir at a point 7 EMRYDAVIs.

Witnesses:

J. B. Knox, I. C. DELANEY.

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